A new light source popped into images taken as part of an all-sky survey starting in late May this year. With follow-up observations in hand, astronomers now think this is the most luminous supernova ever observed. It shines with the luminosity of 572 billion Suns.

Hailed as the “most luminous supernova,” an object dubbed ASASSN-15lh discovered in 2015 appeared to be the death of an extreme type of star, exploding with twice the brightness of any other known supernova.

However, the superluminous supernova scenario had its drawbacks, and a recent press release with the title, “‘Brightest Supernova’ Not a Supernova, But a Star Ripped Apart by a Spinning Black Hole,” appears to tip the tables in favor of an entirely different explanation

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